-23.92% is the change from 209 to 159
Calculation steps:
[( 159 - 209 ) ÷ 209] x 100 = -23.92%
Formula
Percentage change = [(159 - 209) / 209] x 100
Subtract the new number by the original number
159 - 209 = -50
-50 ÷ 209 = -0.23923444976076555
-0.23923444976076555 x 100 = -23.92%